<template>
    <!-- 头部 -->
    <header class="header">
        <!-- 头部的第一行 -->
        <div class="top">
            <div class="container">
                <div class="loginList">
                    <p>尚品汇欢迎您！</p>
                    <!-- 没有用户名：未登录 -->
                    <p v-if="!userName">
                        <span>请</span>
                        <!-- 声明式导航：router-link务必要有to属性 -->
                        <router-link to="/login">登录</router-link>
                        <router-link class="register" to="/register">免费注册</router-link>
                    </p>
                    <!-- 登录了 -->
                    <p v-else>
                        <a>{{userName}}</a>
                        <a class="register" @click="logout">退出登录</a>
                    </p>
                </div>

                <!--                <div class="loginList">-->
                <!--                    <p>尚品汇欢迎您！</p>-->
                <!--                    <p>-->
                <!--                        <span>请</span>-->
                <!--                        <router-link to="/login">登录</router-link>-->
                <!--                        <router-link to="/register" class="register">免费注册</router-link>-->
                <!--                    </p>-->
                <!--                </div>-->
                <div class="typeList">
                    <a href="###">我的订单</a>
                    <a href="###">我的购物车</a>
                    <a href="###">我的尚品汇</a>
                    <a href="###">尚品汇会员</a>
                    <a href="###">企业采购</a>
                    <a href="###">关注尚品汇</a>
                    <a href="###">合作招商</a>
                    <a href="###">商家后台</a>
                </div>
            </div>
        </div>
        <!--头部第二行 搜索区域-->
        <div class="bottom">
            <h1 class="logoArea">
                <router-link to="/home" class="logo">
                    <img src="./images/logo.png" alt="">
                </router-link>
            </h1>
            <div class="searchArea">
                <form action="###" class="searchForm">
                    <input v-model="keyword" type="text" id="autocomplete" class="input-error input-xxlarge"/>
                    <button class="sui-btn btn-xlarge btn-danger" type="button" @click="goSearch">搜索</button>
                </form>
            </div>
        </div>
    </header>

</template>

<script>
    export default {
        name: "",
        data() {
            return {
                keyword: ''
            }
        },
        computed: {
            //用户名信息
            userName() {
                return this.$store.state.user.userInfo.name;
            }
        },
        methods: {
            //退出登录
            async logout() {
                //退出登录需要做的事情
                //1:需要发请求，通知服务器退出登录【清除一些数据：token】
                //2:清除项目当中的数据【userInfo、token】
                try {
                    //如果退出成功
                    await this.$store.dispatch('userLogout');
                    //回到首页
                    this.$router.push('/home');
                } catch (error) {

                }
            },
            // 搜索按钮的事件处理函数，用于跳转到 search 路由组件当中
            goSearch() {
                if (this.$route.query) {
                    let location = {name: 'search', params: {keyword: this.keyword || undefined}}
                    location.query = this.$route.query
                    this.$router.push(location)
                }
            }
        },
        mounted() {
            //通过全局事件总线清除关键字
            this.$bus.$on("clear", () => {
                this.keyword = "";
            })
        }
    }
</script>

<style lang="less">
    .header {
        & > .top {
            background-color: #eaeaea;
            height: 30px;
            line-height: 30px;

            .container {
                width: 1200px;
                margin: 0 auto;
                overflow: hidden;

                .loginList {
                    float: left;

                    p {
                        float: left;
                        margin-right: 10px;

                        .register {
                            border-left: 1px solid #b3aeae;
                            padding: 0 5px;
                            margin-left: 5px;
                        }
                    }
                }

                .typeList {
                    float: right;

                    a {
                        padding: 0 10px;

                        & + a {
                            border-left: 1px solid #b3aeae;
                        }
                    }

                }

            }
        }

        & > .bottom {
            width: 1200px;
            margin: 0 auto;
            overflow: hidden;

            .logoArea {
                float: left;

                .logo {
                    img {
                        width: 175px;
                        margin: 25px 45px;
                    }
                }
            }

            .searchArea {
                float: right;
                margin-top: 35px;

                .searchForm {
                    overflow: hidden;

                    input {
                        box-sizing: border-box;
                        width: 490px;
                        height: 32px;
                        padding: 0px 4px;
                        border: 2px solid #ea4a36;
                        float: left;

                        &:focus {
                            outline: none;
                        }
                    }

                    button {
                        height: 32px;
                        width: 68px;
                        background-color: #ea4a36;
                        border: none;
                        color: #fff;
                        float: left;
                        cursor: pointer;

                        &:focus {
                            outline: none;
                        }
                    }
                }
            }
        }
    }

</style>
